Hello all, I am having a strange SMTP problem. I have ISA running in integrated mode and my servers are all SNAT clients. What is happening is this. I have a Netware 4.11 server on the internal network that is running Mercury for email services. When users try to send email outside of the state domain (k12.ar.us) it gives a relaying error. I have been informed that the mail is coming from the wrong IP. I have several IPs bound to the external NIC of ISA for email and web and such. I used mail publishing to set up the mail server on ISA and pointed it at the IP for that mail domain. Why does it use the default ISA IP instead? TIA, Toby Yeager Pottsville School District